Nallakkandi Rajeevan

4.8k total citations · 3 hit papers
42 papers, 2.8k citations indexed

About

Nallakkandi Rajeevan is a scholar working on Radiology, Nuclear Medicine and Imaging, Infectious Diseases and Cognitive Neuroscience. According to data from OpenAlex, Nallakkandi Rajeevan has authored 42 papers receiving a total of 2.8k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Radiology, Nuclear Medicine and Imaging, 8 papers in Infectious Diseases and 7 papers in Cognitive Neuroscience. Recurrent topics in Nallakkandi Rajeevan's work include Advanced MRI Techniques and Applications (8 papers), COVID-19 Clinical Research Studies (7 papers) and Medical Imaging Techniques and Applications (6 papers). Nallakkandi Rajeevan is often cited by papers focused on Advanced MRI Techniques and Applications (8 papers), COVID-19 Clinical Research Studies (7 papers) and Medical Imaging Techniques and Applications (6 papers). Nallakkandi Rajeevan collaborates with scholars based in United States, Canada and Australia. Nallakkandi Rajeevan's co-authors include Xenophon Papademetris, Jeremy R. Gray, R. Todd Constable, Colin G. DeYoung, Jacob B. Hirsh, Matthew S. Shane, Cheryl Lacadie, Robert K. Fulbright, Sami S. Zoghbi and John Seibyl and has published in prestigious journals such as Nature Communications, Annals of Internal Medicine and PLoS ONE.

In The Last Decade

Nallakkandi Rajeevan

39 papers receiving 2.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Testing Predictions From Personality Neuroscience

2010 660 citations Xenophon Papademetris, Nallakkandi Rajeevan et al. profile →
Gut Microbiota of the Tick Vector Ixodes scapularis Modulate Colonization of the Lyme Disease Spirochete

2014 268 citations Sukanya Narasimhan, Nallakkandi Rajeevan et al. Cell Host & Microbe profile →
Respiratory syncytial virus vaccine effectiveness among US veterans, September, 2023 to March, 2024: a target trial emulation study

2025 13 citations Kristina L. Bajema, Lei Yan et al. The Lancet Infectious Diseases profile →

Peers

Countries citing papers authored by Nallakkandi Rajeevan

Since Specialization

Citations

This map shows the geographic impact of Nallakkandi Rajeevan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Nallakkandi Rajeevan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Nallakkandi Rajeevan more than expected).

Fields of papers citing papers by Nallakkandi Rajeevan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nallakkandi Rajeevan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Nallakkandi Rajeevan. The network helps show where Nallakkandi Rajeevan may publish in the future.

Co-authorship network of co-authors of Nallakkandi Rajeevan

This figure shows the co-authorship network connecting the top 25 collaborators of Nallakkandi Rajeevan. A scholar is included among the top collaborators of Nallakkandi Rajeevan based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Nallakkandi Rajeevan. Nallakkandi Rajeevan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Effectiveness of the 2023-to-2024 XBB.1.5 COVID-19 Vaccines Over Long-Term Follow-up 2025 ·Annals of Internal Medicine ·George N. Ioannou, Kristin Berry, Nallakkandi Rajeevan, Yuli Li, Lei Yan, Yuan Huang, Hung‐Mo Lin, David Bui, Denise M. Hynes, Mazhgan Rowneki, Amy S. B. Bohnert, Edward J. Boyko, Theodore J. Iwashyna, Matthew L. Maciejewski, Valerie A. Smith, Theodore S. Z. Berkowitz, Ann M. O’Hare, Elizabeth M. Viglianti, Mihaela Aslan, Kristina L. Bajema	4
2	Respiratory syncytial virus vaccine effectiveness among US veterans, September, 2023 to March, 2024: a target trial emulation study breakdown → 2025 ·The Lancet Infectious Diseases ·Kristina L. Bajema, Lei Yan, Yuli Li, (unknown), Nallakkandi Rajeevan, Alexandra Fox, (unknown), Kristin Berry, David Bui, (unknown), Hung‐Mo Lin, Denise M. Hynes, Cynthia Lucero‐Obusan, Patricia Schirmer, Francesca Cunningham, Grant D. Huang, Mihaela Aslan, George N. Ioannou	13
3	Severity and Long-Term Mortality of COVID-19, Influenza, and Respiratory Syncytial Virus 2025 ·JAMA Internal Medicine ·Kristina L. Bajema, David Bui, Lei Yan, Yuli Li, Nallakkandi Rajeevan, (unknown), Kristin Berry, Yuan Huang, Hung‐Mo Lin, Mihaela Aslan, George N. Ioannou	7
4	Identifying Veterans Who Benefit From Nirmatrelvir-Ritonavir: A Target Trial Emulation 2024 ·Clinical Infectious Diseases ·Lei Yan, David Bui, Yuli Li, Nallakkandi Rajeevan, Mazhgan Rowneki, Kristin Berry, (unknown), (unknown), Denise M. Hynes, Francesca Cunningham, Grant D. Huang, Mihaela Aslan, George N. Ioannou, Kristina L. Bajema	3
5	Effectiveness of Nirmatrelvir–Ritonavir Against the Development of Post–COVID-19 Conditions Among U.S. Veterans 2023 ·Annals of Internal Medicine ·George N. Ioannou, Kristin Berry, Nallakkandi Rajeevan, Yuli Li, (unknown), Lei Yan, David Bui, Francesca Cunningham, Denise M. Hynes, Mazhgan Rowneki, Amy S. B. Bohnert, Edward J. Boyko, Theodore J. Iwashyna, Matthew L. Maciejewski, Thomas F. Osborne, Elizabeth M. Viglianti, Mihaela Aslan, Grant D. Huang, Kristina L. Bajema	26
6	Anti–SARS-CoV-2 Pharmacotherapies Among Nonhospitalized US Veterans, January 2022 to January 2023 2023 ·JAMA Network Open ·Lei Yan, Elani Streja, Yuli Li, Nallakkandi Rajeevan, Mazhgan Rowneki, Kristin Berry, Denise M. Hynes, Francesca Cunningham, Grant D. Huang, Mihaela Aslan, George N. Ioannou, Kristina L. Bajema	9
7	Effectiveness of COVID-19 Treatment With Nirmatrelvir–Ritonavir or Molnupiravir Among U.S. Veterans: Target Trial Emulation Studies With One-Month and Six-Month Outcomes 2023 ·Annals of Internal Medicine ·Kristina L. Bajema, Kristin Berry, Elani Streja, Nallakkandi Rajeevan, Yuli Li, (unknown), Lei Yan, Francesca Cunningham, Denise M. Hynes, Mazhgan Rowneki, Amy S. B. Bohnert, Edward J. Boyko, Theodore J. Iwashyna, Matthew L. Maciejewski, Thomas F. Osborne, Elizabeth M. Viglianti, Mihaela Aslan, Grant D. Huang, George N. Ioannou	63
8	Tick transmission of Borrelia burgdorferi to the murine host is not influenced by environmentally acquired midgut microbiota 2022 ·Microbiome ·Sukanya Narasimhan, Nallakkandi Rajeevan, Morven Graham, Ming-Jie Wu, Kathleen DePonte, (unknown), (unknown), (unknown), Joao H. F. Pedra, Daniel E. Sonenshine, Erol Fikrig	9
9	Suicidal ideation and behavior in US veterans with schizophrenia or bipolar disorder 2018 ·Journal of Psychiatric Research ·Philip D. Harvey, Kelly Posner, Nallakkandi Rajeevan, Kseniya Yershova, Mihaela Aslan, John Concato	25
10	Utilizing patient data from the veterans administration electronic health record to support web-based clinical decision support: informatics challenges and issues from three clinical domains 2017 ·BMC Medical Informatics and Decision Making ·Nallakkandi Rajeevan, (unknown), Peter Charpentier, Forrest L. Levin, Amy C. Justice, Cynthia Brandt, Terri R. Fried, Perry L. Miller	17
11	Modulation of the tick gut milieu by a secreted tick protein favors Borrelia burgdorferi colonization 2017 ·Nature Communications ·Sukanya Narasimhan, Tim J. Schuijt, Nabil M. Abraham, Nallakkandi Rajeevan, Jeroen Coumou, Morven Graham, Andrew Robson, Ming-Jie Wu, Sirlei Daffre, Joppe W. Hovius, Erol Fikrig	79
12	Impact of genotyping errors on statistical power of association tests in genomic analyses: A case study 2016 ·Genetic Epidemiology ·Lin Hou, Ning Sun, Shrikant Mane, (unknown), Nallakkandi Rajeevan, Kei‐Hoi Cheung, Kelly Cho, Saiju Pyarajan, Mihaela Aslan, (unknown), Philip D. Harvey, J. Michael Gaziano, John Concato, Hongyu Zhao	6
13	Gut Microbiota of the Tick Vector Ixodes scapularis Modulate Colonization of the Lyme Disease Spirochete breakdown → 2014 ·Cell Host & Microbe ·Sukanya Narasimhan, Nallakkandi Rajeevan, Lei Liu, Yang O. Zhao, Julia Heisig, Jingyi Pan, (unknown), Kathleen DePonte, Durland Fish, Erol Fikrig	268
14	Alterations in neural connectivity in preterm children at school age 2009 ·NeuroImage ·(unknown), Betty R. Vohr, Cheryl Lacadie, Michelle Hampson, Karol H. Katz, (unknown), Karen Schneider, Bradley S. Peterson, Nallakkandi Rajeevan, Robert Makuch, R. Todd Constable, Laura R. Ment	118
15	Arterial transit time effects in pulsed arterial spin labeling CBF mapping: Insight from a PET and MR study in normal human subjects 2009 ·Magnetic Resonance in Medicine ·Maolin Qiu, R. P. Maguire, Jagriti Arora, Beata Planeta‐Wilson, David Weinzimmer, Jinghua Wang, Yuenan Wang, Hyeonjin Kim, Nallakkandi Rajeevan, Yiyun Huang, Richard E. Carson, R. Todd Constable	54
16	Variation in orbitofrontal cortex volume: relation to sex, emotion regulation and affect 2009 ·Social Cognitive and Affective Neuroscience ·B. Locke Welborn, Xenophon Papademetris, Deidre L. Reis, Nallakkandi Rajeevan, (unknown), Jeremy R. Gray	94
17	More accurate Talairach coordinates for neuroimaging using non-linear registration 2008 ·NeuroImage ·Cheryl Lacadie, Robert K. Fulbright, Nallakkandi Rajeevan, R. Todd Constable, Xenophon Papademetris	285
18	Kinetic and equilibrium analyses of [123I]epidepride binding to striatal and extrastriatal dopamine D2 receptors 1999 ·Synapse ·Masahiro Fujita, John Seibyl, Nicholaas Paul L.G. Verhoeff, Masanori Ichise, Ronald M. Baldwin, Sami S. Zoghbi, Cyrill Burger, Julie K. Staley, Nallakkandi Rajeevan, Dennis S. Charney, Robert B. Innis	44
19	Effects of Vigabatrin on the GABAergic System as Determined by [¹²³I]Iomazenil SPECT and GABA MRS 1999 ·Epilepsia ·Nicolaas Paul L.G. Verhoeff, Ognen A. C. Petroff, Fahmeed Hyder, Sami S. Zoghbi, Masahiro Fujita, Nallakkandi Rajeevan, Douglas L. Rothman, John Seibyl, Richard H. Mattson, Robert B. Innis	33
20	Alterations of Benzodiazepine Receptors in Type II Alcoholic Subjects Measured With SPECT and [¹²³I]Iomazenil 1998 ·American Journal of Psychiatry ·Anissa Abi‐Dargham, John H. Krystal, Satish Anjilvel, B. Ellen Scanley, Sami S. Zoghbi, Ronald M. Baldwin, Nallakkandi Rajeevan, Steven P. Ellis, Ismene L. Petrakis, John Seibyl, Dennis S. Charney, Marc Laruelle, Robert B. Innis	310

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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